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E-Flite UMX Yak 54 3D BNF Basic Ultra Micro EFLU3550

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E-Flite UMX Yak 54 3D BNF Basic Ultra MicroE-Flite UMX Yak 54 3D BNF Basic Ultra Micro

Product Description


With a flying weight of barely over an ounce (36 grams), the compact UMX Yak 54 3D ultra micro is small enough and light enough to be flown just about anywhere. But what really sets it apart is its specially tuned AS3X stabilization system. This exclusive technology makes it easy for sport pilots to discover the fun of hovering and harriers without sacrificing any of the agility an expert 3D pilot demands.

Specially Tuned AS3X Receiver Makes 3D Easy The AS3X (Artificial Stabilization – 3-aXis) technology in the model’s receiver makes it easy to discover the fun of 3D aerobatics without feeling frustrated. Using a unique combination of sensors and software, it works behind the scenes to make slow-speed and knife-edge manoeuvres feel incredibly stable without limiting the aircraft’s agility or interfering with your control. The plane simply stays in whatever attitude you want without making you struggle to keep it there.

The receiver also features five pre-programmed flight modes – three default modes that are active out of the box and two alternate modes you can activate later. Each has different AS3X stability settings tailored for your skill level or the 3D manoeuvre you want to try.

Default Modes

General Flight Mode Heading hold in roll-axis for a locked-in feel.

Standard AS3X Mode Tuned for the expert 3D pilot but great for flying pattern aerobatics, too.

Hover Assist Mode Aggressive heading hold in roll, yaw and pitch so it's easier to enter and maintain a hover.

Alternate Modes

Knife-Edge Assist Mode Heading hold settings for roll, yaw and pitch that make it easy to try knife-edge manoeuvres.

Torque Roll Assist Mode Aggressive heading hold settings for yaw and pitch that make torque rolls easier.


  • No assembly required
  • Exclusive AS3X stabilization technology
  • Multiple flight modes that make 3D easy
  • Feather-light, carbon-reinforced foam airframe
  • Side-Force Generators for improved knife-edge flight
  • Potent 8.5mm coreless motor
  • Spektrum DSMX receiver
  • Spektrum long-throw performance linear servos
  • Stunning red and silver trim scheme
  • Carbon fibre landing gear with simulated wheel pants


Wingspan: 430mm (16.9 in)
Length: 497mm (19.6in)
Wing Area: 472 sq cm (73 sq in)
Flying Weight: 36g (1.3 oz)
Motor Size: 8.5mm brushed (installed)
Receiver: DSMX/DSM2 with AS3X Technology (installed)
Recommended Battery: 150mAh 1S 7.4V 45C LiPo
Required Radio: 6+ Channel
Experience Level: Intermediate
Recommended Environment: Outdoor
Assembly Required: No


  • Full-range, 6+ channel DSMX/DSM2 transmitter
  • 150mAh 1S 3.7V 45C LiPo flight battery (EFLB1501S45 recommended)
  • 1S LiPo charger
Ref: A-EFLU3550 Stock Status: 1 Units in Stock Manufactured by: E-flite

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Price £114.99£103.49Save: 10% off

4 out of 5 stars (1 Customer Review)

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Product Reviews
4 out of 5 stars
4 out of 5 stars Tuesday 18 October, 2016 By Grant
wow what a great micro model from UMX , flies great with plenty of power from its brushed motor on 1s 160mah battery , very light and very agile , knife edge and prop hanging are effortless .

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